Hunter Bown
90eaf04a84
Closes the persistent "fatal: could not read Username for 'https://cnb.cool'" failure that bit about half of recent sync-cnb runs. Root causes from the failure log of run 25705666413 (2026-05-12) and 25697452832 (2026-05-11): 1. The previous tencentcom/git-sync Docker action discovered every local ref via fetch-depth: 0 and tried to push them all — including dependabot/* branches that GitHub had locally. Those follow-on pushes ran without the configured credential helper in scope and failed with the basic-auth prompt error above. 2. No concurrency guard meant the back-to-back `main` push and `v*` tag push that auto-tag.yml fires within ~15s of each other raced. Two workflow runs would attempt to push to the same CNB remote simultaneously; one would lose. Rewrite: * Hand-rolled `git push` with the CNB token URL-encoded inline so the credential is always in scope. No Docker action dependency. * `concurrency: group: cnb-sync, cancel-in-progress: false` so queued runs serialize cleanly rather than racing or dropping. * Only push the ref that triggered the run — `main` on branch push (with --force-with-lease for safety), the specific tag on tag push. Feature branches and dependabot refs no longer mirror. * 3-attempt retry with linear backoff (5s, 10s) for transient failures (CNB rate-limit, DNS blips, etc.). * `workflow_dispatch: {}` trigger so the maintainer can re-run against a specific ref manually if the automated run fails. Adds docs/CNB_MIRROR.md with: the verification steps after a release, the manual fallback procedure (one-time `git remote add cnb`, then `git push cnb vX.Y.Z`), the token-rotation procedure, and a note on why binary release assets aren't on CNB today. Cross-links from docs/RELEASE_RUNBOOK.md so the verify-after-release step doesn't get forgotten.
105 lines
4.1 KiB
YAML
105 lines
4.1 KiB
YAML
name: Sync to CNB
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# Mirror commits and release tags to cnb.cool/deepseek-tui.com/DeepSeek-TUI
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# so users behind GitHub-blocking networks can fetch the source and tagged
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# releases from the Tencent-hosted mirror.
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#
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# Triggers:
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# * push to main → mirrors that commit to CNB main
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# * tag matching v* → mirrors that tag to CNB
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# * workflow_dispatch → manual fallback if either of the above fails
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#
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# Why the rewrite (v0.8.31):
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# The previous implementation used the opaque tencentcom/git-sync Docker
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# action, which discovered every local ref via fetch-depth: 0 and tried
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# to push them all — including dependabot/* branches that GitHub had
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# locally. Those follow-on pushes ran without the configured credential
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# helper in scope and failed with
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# `fatal: could not read Username for 'https://cnb.cool'`
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# No concurrency block meant the main-push and tag-push workflow runs
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# that auto-tag.yml fires within seconds of each other raced. About
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# half of recent runs failed for those two reasons combined.
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on:
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push:
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branches: [main]
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tags: ['v*']
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workflow_dispatch: {}
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# Serialize runs so the back-to-back main-push + tag-push from auto-tag.yml
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# don't race each other rebasing onto CNB. cancel-in-progress: false so
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# every commit actually arrives — we'd rather queue than drop.
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concurrency:
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group: cnb-sync
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cancel-in-progress: false
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permissions:
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contents: read
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jobs:
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sync:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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with:
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fetch-depth: 0
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- name: Push triggering ref to CNB
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env:
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CNB_TOKEN: ${{ secrets.CNB_GIT_TOKEN }}
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shell: bash
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run: |
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set -euo pipefail
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if [ -z "${CNB_TOKEN:-}" ]; then
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echo "::error::CNB_GIT_TOKEN secret is not set; cannot push to CNB." >&2
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exit 1
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fi
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# URL-encode any '%' in the token so basic-auth doesn't break on
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# special characters. CNB tokens are typically alphanumeric so
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# this is belt-and-suspenders.
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ENCODED_TOKEN="$(printf '%s' "${CNB_TOKEN}" | python3 -c 'import sys, urllib.parse; print(urllib.parse.quote(sys.stdin.read(), safe=""))')"
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REMOTE_URL="https://cnb:${ENCODED_TOKEN}@cnb.cool/deepseek-tui.com/DeepSeek-TUI.git"
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# Use a masked alias so the token never appears in log lines.
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git remote add cnb "${REMOTE_URL}"
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# Push with retry on transient failures (CNB rate-limits, DNS
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# blips, etc.). Args after `kind` are forwarded to `git push`
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# so callers can pass `--force-with-lease`, multiple refspecs,
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# etc. without quoting them into one string.
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push_with_retry() {
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local kind="$1"
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shift
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local attempt
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for attempt in 1 2 3; do
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echo "Attempt ${attempt}: pushing ${kind} to CNB"
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if git push cnb "$@" 2>&1; then
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echo "Successfully pushed ${kind} to CNB"
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return 0
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fi
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if [ "${attempt}" -lt 3 ]; then
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sleep $((attempt * 5))
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fi
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done
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echo "::error::Failed to push ${kind} to CNB after 3 attempts" >&2
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return 1
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}
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if [[ "${GITHUB_REF}" == refs/tags/* ]]; then
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TAG="${GITHUB_REF#refs/tags/}"
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push_with_retry "tag ${TAG}" "refs/tags/${TAG}:refs/tags/${TAG}"
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elif [[ "${GITHUB_REF}" == refs/heads/main ]]; then
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# --force-with-lease so an unexpected diverged state on CNB
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# surfaces as a failure (rather than silently overwriting).
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# The mirror is one-way; if CNB diverges, that's a bug worth
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# investigating manually before pushing again.
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push_with_retry "main" HEAD:refs/heads/main --force-with-lease
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else
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# workflow_dispatch from a non-main branch — push that branch
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# too, but never force. Useful for testing the mirror against
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# a feature branch before merging.
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BRANCH="${GITHUB_REF#refs/heads/}"
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push_with_retry "branch ${BRANCH}" "HEAD:refs/heads/${BRANCH}"
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fi
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